A body underground. An ancient ritual. A killer in the shadows. The real game is just beginning... When a body is found in the depths of Mary King’s Close, DCI 'Mac' McNeill is thrust into a case involving the burden of sins and an old ritual tied to absolution. With each clue, he is drawn closer to a confrontation with a killer driven by a twisted sense of justice. As the investigation intensifies, Mac faces threats from a powerful adversary within the force, who aims to dominate the criminal underworld. Forced to protect those he cares about, Mac sends Clio and her daughter to...